Mathematics

Mathematics games

Short problems, sequences, and logic challenges that make reasoning practice fun.

Advanced 7 min

Prime number grid

Recognize multiples and prime numbers before time runs out.

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Advanced 9 min

Find the smallest positive integer satisfying three remainder conditions.

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Advanced 8 min

Deduction with three people: truth-tellers and liars.

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Advanced 8 min

Find the initial value after two successive percentage changes.

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Advanced 8 min

Count positive divisors using prime factorization.

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Advanced 9 min

Rebuild the order of five people from logic clues.

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Advanced 8 min

Solve expressions combining addition, subtraction and division of fractions.

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